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Calcimator

Bracket Positioning Calculator

Calculate ideal bracket placement height based on tooth type, crown height, prescription system, and overbite correction needs.

Inputs

mm
mm
mm

Results

Bracket Height from Incisal/Occlusal (mm)

4.5

Standard Prescription Height (mm)4.5
Distance from Gingival Margin (mm)5.5
Offset from Crown Center (mm)-0.5
Crown Height Ratio1
Overbite Adjustment (mm)0
Tooth NameCentral Incisor
Presc NameMBT
Arch NameMaxillary
How to Use This Calculator
  1. Enter tooth type and desired bracket height (mm from incisal edge or cusp tip).
  2. Enter torque, angulation, and in/out values from the prescription bracket data.
  3. Read the ideal bracket center placement (mm from a reference landmark).
  4. Use the positioning guide to transfer bracket placement to the clinical bonding procedure.
  5. Verify placement against a bracket placement gauge or digital scanning reference.

How the result changes with Clinical Crown Height (mm)

Clinical Crown Height (mm)Bracket Height from Incisal/Occlusal (mm)
52.3
7.53.4
115
135.9

What each input means

Tooth Type
1=Central incisor, 2=Lateral incisor, 3=Canine, 4=1st Premolar, 5=2nd Premolar, 6=1st Molar.
Arch
0 = Maxillary (upper), 1 = Mandibular (lower).
Clinical Crown Height (mm)
Measured clinical crown height from gingival margin to incisal edge or occlusal surface.
Prescription System
0 = MBT, 1 = Roth, 2 = Damon.
Overbite (mm)
Vertical overbite in mm. Negative values indicate open bite.
Bolton Compensation (mm)
Bolton discrepancy compensation adjustment in mm.

What each result means

Bracket Height from Incisal/Occlusal (mm)
Recommended bracket placement height from the incisal edge or occlusal surface.
Standard Prescription Height (mm)
Standard bracket height for this tooth without modifications.
Distance from Gingival Margin (mm)
Distance from the gingival margin to bracket center.
Offset from Crown Center (mm)
Bracket position relative to the center of the clinical crown. Positive = more incisal.
Crown Height Ratio
Ratio of actual crown height to average. >1 = longer crown, <1 = shorter.
Overbite Adjustment (mm)
Height adjustment applied for overbite or open bite correction.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Tooth Type = 1, Arch = 0, Clinical Crown Height (mm) = 10, Prescription System = 0 = 6 input(s) provided
  2. Calculate Bracket Height from Incisal/Occlusal
    Bracket Height from Incisal/Occlusal = max(2.0, min(7.0, finalHeight))
    4.5 = 4.5
  3. Calculate Standard Prescription Height
    Standard Prescription Height
    4.5 = 4.5
  4. Calculate Distance from Gingival Margin
    Distance from Gingival Margin
    5.5 = 5.5

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